/* ============================================================
   AfterSolves Database Platform — Global Stylesheet
   Design philosophy: Apple / Linear / Notion / Stripe
   Minimal · Clean · Premium · Fast
   ============================================================ */

:root {
  /* Brand palette — refined neutrals + signature accent */
  --as-bg: #ffffff;
  --as-bg-subtle: #fafafa;
  --as-bg-muted: #f5f5f7;
  --as-bg-elevated: #ffffff;
  --as-bg-sidebar: #fbfbfd;

  --as-border: #ececef;
  --as-border-strong: #d8d8dc;
  --as-border-subtle: #f2f2f4;

  --as-text: #1d1d1f;
  --as-text-secondary: #6e6e73;
  --as-text-tertiary: #9a9aa0;
  --as-text-inverse: #ffffff;

  --as-accent: #0066ff;
  --as-accent-hover: #0052cc;
  --as-accent-subtle: #eef4ff;
  --as-accent-bg: #f0f6ff;

  --as-success: #00875a;
  --as-success-bg: #e6f4ee;
  --as-warning: #c47700;
  --as-warning-bg: #fdf3e3;
  --as-danger: #d83a3a;
  --as-danger-bg: #fdeaea;
  --as-info: #0066cc;
  --as-info-bg: #e8f1fc;

  --as-shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.04);
  --as-shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
  --as-shadow-md: 0 4px 12px rgba(16, 24, 40, 0.06), 0 2px 6px rgba(16, 24, 40, 0.04);
  --as-shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.08), 0 4px 12px rgba(16, 24, 40, 0.05);
  --as-shadow-xl: 0 24px 64px rgba(16, 24, 40, 0.10), 0 8px 24px rgba(16, 24, 40, 0.06);

  --as-radius-xs: 4px;
  --as-radius-sm: 6px;
  --as-radius: 8px;
  --as-radius-md: 10px;
  --as-radius-lg: 12px;
  --as-radius-xl: 16px;

  --as-font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text',
             'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --as-font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', Menlo, Monaco, Consolas, monospace;
}

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

html, body {
  font-family: var(--as-font);
  color: var(--as-text);
  background: var(--as-bg);
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  letter-spacing: -0.011em;
}

/* ===== Layout primitives ===== */
.as-app {
  display: grid;
  grid-template-columns: 248px 1fr;
  min-height: 100vh;
  background: var(--as-bg-subtle);
}

.as-app__main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-x: hidden;
}

.as-content {
  flex: 1;
  padding: 32px 40px 64px;
  max-width: 100%;
}

@media (max-width: 768px) {
  .as-app { grid-template-columns: 1fr; }
  .as-content { padding: 20px 16px 48px; }
}

/* ===== Sidebar ===== */
.as-sidebar {
  background: var(--as-bg-sidebar);
  border-right: 1px solid var(--as-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.as-sidebar__brand {
  padding: 22px 20px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--as-border-subtle);
}

.as-brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: linear-gradient(135deg, #0066ff 0%, #00b4d8 100%);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.02em;
  box-shadow: 0 1px 3px rgba(0, 102, 255, 0.3);
}

.as-brand-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--as-text);
  letter-spacing: -0.01em;
}

.as-brand-text small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--as-text-tertiary);
  margin-top: 1px;
  letter-spacing: 0;
}

.as-nav {
  padding: 12px 12px 24px;
  flex: 1;
}

.as-nav__group-label {
  padding: 14px 12px 6px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--as-text-tertiary);
}

.as-nav__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  margin: 1px 0;
  border-radius: var(--as-radius-sm);
  color: var(--as-text-secondary);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  transition: background 120ms ease, color 120ms ease;
  cursor: pointer;
  position: relative;
}

.as-nav__link:hover {
  background: var(--as-bg-muted);
  color: var(--as-text);
}

.as-nav__link.is-active {
  background: var(--as-bg);
  color: var(--as-text);
  box-shadow: var(--as-shadow-xs);
}

.as-nav__link.is-active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--as-accent);
  border-radius: 2px;
}

.as-nav__icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: currentColor;
  opacity: 0.85;
}

.as-nav__badge {
  margin-left: auto;
  background: var(--as-bg-muted);
  color: var(--as-text-secondary);
  font-size: 10.5px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 999px;
  min-width: 18px;
  text-align: center;
}

.as-sidebar__footer {
  padding: 12px;
  border-top: 1px solid var(--as-border-subtle);
}

.as-user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--as-radius);
  cursor: pointer;
  transition: background 120ms ease;
}

.as-user-card:hover { background: var(--as-bg-muted); }

.as-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 600;
  font-size: 12px;
  flex-shrink: 0;
}

.as-avatar--sm { width: 24px; height: 24px; font-size: 10px; }
.as-avatar--lg { width: 40px; height: 40px; font-size: 14px; }

.as-user-card__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--as-text);
  line-height: 1.2;
}

.as-user-card__role {
  font-size: 11px;
  color: var(--as-text-tertiary);
  margin-top: 1px;
}

/* ===== Navbar (top) ===== */
.as-navbar {
  height: 56px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--as-border);
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.as-navbar__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--as-text);
  letter-spacing: -0.01em;
}

.as-navbar__crumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--as-text-tertiary);
}

.as-navbar__crumbs span { color: var(--as-text-tertiary); }
.as-navbar__crumbs strong { color: var(--as-text); font-weight: 600; }

.as-navbar__search {
  margin-left: auto;
  position: relative;
  width: 280px;
}

.as-navbar__search input {
  width: 100%;
  height: 32px;
  padding: 0 12px 0 32px;
  border-radius: var(--as-radius);
  border: 1px solid var(--as-border);
  background: var(--as-bg-subtle);
  font-size: 13px;
  color: var(--as-text);
  transition: all 120ms ease;
  font-family: var(--as-font);
}

.as-navbar__search input:focus {
  outline: none;
  border-color: var(--as-accent);
  background: white;
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}

.as-navbar__search svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--as-text-tertiary);
  pointer-events: none;
}

.as-icon-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--as-radius);
  border: 1px solid transparent;
  background: transparent;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--as-text-secondary);
  transition: all 120ms ease;
  position: relative;
}

.as-icon-btn:hover {
  background: var(--as-bg-muted);
  color: var(--as-text);
}

.as-icon-btn svg { width: 16px; height: 16px; }

.as-icon-btn__dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--as-danger);
  border: 2px solid white;
}

/* ===== Cards ===== */
.as-card {
  background: var(--as-bg-elevated);
  border: 1px solid var(--as-border);
  border-radius: var(--as-radius-lg);
  box-shadow: var(--as-shadow-xs);
}

.as-card--pad { padding: 20px; }
.as-card--pad-lg { padding: 28px; }

.as-card__header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--as-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.as-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--as-text);
  letter-spacing: -0.01em;
}

.as-card__subtitle {
  font-size: 12.5px;
  color: var(--as-text-tertiary);
  margin-top: 2px;
}

.as-card__body { padding: 20px; }

/* ===== Buttons ===== */
.as-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  border-radius: var(--as-radius);
  border: 1px solid transparent;
  font-family: var(--as-font);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 120ms ease;
  white-space: nowrap;
  letter-spacing: -0.005em;
  text-decoration: none;
  user-select: none;
}

.as-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.as-btn--primary {
  background: var(--as-text);
  color: white;
}
.as-btn--primary:hover { background: #000; transform: translateY(-0.5px); box-shadow: var(--as-shadow-sm); }

.as-btn--accent {
  background: var(--as-accent);
  color: white;
}
.as-btn--accent:hover { background: var(--as-accent-hover); transform: translateY(-0.5px); box-shadow: 0 4px 12px rgba(0, 102, 255, 0.25); }

.as-btn--secondary {
  background: white;
  border-color: var(--as-border-strong);
  color: var(--as-text);
}
.as-btn--secondary:hover { background: var(--as-bg-muted); border-color: var(--as-text-tertiary); }

.as-btn--ghost {
  background: transparent;
  color: var(--as-text-secondary);
}
.as-btn--ghost:hover { background: var(--as-bg-muted); color: var(--as-text); }

.as-btn--danger {
  background: var(--as-danger);
  color: white;
}
.as-btn--danger:hover { background: #b83232; }

.as-btn--danger-ghost {
  background: transparent;
  color: var(--as-danger);
  border-color: transparent;
}
.as-btn--danger-ghost:hover { background: var(--as-danger-bg); }

.as-btn--sm { height: 28px; padding: 0 10px; font-size: 12.5px; }
.as-btn--lg { height: 40px; padding: 0 18px; font-size: 14px; }
.as-btn--block { width: 100%; }
.as-btn--icon { padding: 0; width: 32px; }

/* ===== Inputs ===== */
.as-input,
.as-select,
.as-textarea {
  width: 100%;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--as-radius);
  border: 1px solid var(--as-border-strong);
  background: white;
  font-family: var(--as-font);
  font-size: 13.5px;
  color: var(--as-text);
  transition: all 120ms ease;
}

.as-textarea {
  height: auto;
  padding: 8px 12px;
  min-height: 80px;
  resize: vertical;
  line-height: 1.5;
}

.as-input:focus,
.as-select:focus,
.as-textarea:focus {
  outline: none;
  border-color: var(--as-accent);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}

.as-input::placeholder { color: var(--as-text-tertiary); }

.as-field {
  margin-bottom: 16px;
}

.as-field__label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--as-text);
  margin-bottom: 6px;
  letter-spacing: -0.005em;
}

.as-field__hint {
  font-size: 11.5px;
  color: var(--as-text-tertiary);
  margin-top: 5px;
  line-height: 1.4;
}

.as-field__error {
  font-size: 11.5px;
  color: var(--as-danger);
  margin-top: 5px;
}

/* ===== Badges ===== */
.as-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.4;
}

.as-badge--neutral { background: var(--as-bg-muted); color: var(--as-text-secondary); }
.as-badge--accent { background: var(--as-accent-subtle); color: var(--as-accent); }
.as-badge--success { background: var(--as-success-bg); color: var(--as-success); }
.as-badge--warning { background: var(--as-warning-bg); color: var(--as-warning); }
.as-badge--danger { background: var(--as-danger-bg); color: var(--as-danger); }
.as-badge--info { background: var(--as-info-bg); color: var(--as-info); }

.as-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ===== Tables ===== */
.as-table-wrap {
  overflow-x: auto;
  border-radius: var(--as-radius-lg);
  border: 1px solid var(--as-border);
  background: white;
}

.as-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.as-table thead th {
  text-align: left;
  padding: 10px 14px;
  font-weight: 600;
  color: var(--as-text-tertiary);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--as-bg-subtle);
  border-bottom: 1px solid var(--as-border);
  white-space: nowrap;
  position: sticky;
  top: 0;
}

.as-table tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--as-border-subtle);
  color: var(--as-text);
  vertical-align: middle;
}

.as-table tbody tr:last-child td { border-bottom: none; }
.as-table tbody tr:hover { background: var(--as-bg-subtle); }

.as-table__cell-mono {
  font-family: var(--as-font-mono);
  font-size: 12px;
  color: var(--as-text-secondary);
}

/* ===== Modal ===== */
.as-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(16, 16, 20, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
  animation: as-fade-in 160ms ease;
}

.as-modal {
  background: white;
  border-radius: var(--as-radius-xl);
  box-shadow: var(--as-shadow-xl);
  width: 100%;
  max-width: 480px;
  max-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  animation: as-modal-in 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.as-modal--lg { max-width: 640px; }
.as-modal--xl { max-width: 800px; }

.as-modal__header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--as-border-subtle);
}

.as-modal__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--as-text);
  letter-spacing: -0.015em;
}

.as-modal__subtitle {
  font-size: 13px;
  color: var(--as-text-tertiary);
  margin-top: 3px;
}

.as-modal__body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.as-modal__footer {
  padding: 16px 24px;
  border-top: 1px solid var(--as-border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

@keyframes as-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes as-modal-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ===== Toast ===== */
.as-toast-stack {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.as-toast {
  pointer-events: auto;
  background: white;
  border: 1px solid var(--as-border);
  border-radius: var(--as-radius);
  box-shadow: var(--as-shadow-lg);
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-width: 280px;
  max-width: 360px;
  animation: as-toast-in 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.as-toast__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}

.as-toast--success .as-toast__icon { color: var(--as-success); }
.as-toast--error .as-toast__icon { color: var(--as-danger); }
.as-toast--warning .as-toast__icon { color: var(--as-warning); }
.as-toast--info .as-toast__icon { color: var(--as-accent); }

.as-toast__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--as-text);
}

.as-toast__msg {
  font-size: 12.5px;
  color: var(--as-text-secondary);
  margin-top: 2px;
  line-height: 1.4;
}

@keyframes as-toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===== Spinner ===== */
.as-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--as-border-strong);
  border-top-color: var(--as-accent);
  border-radius: 50%;
  animation: as-spin 600ms linear infinite;
}

.as-spinner--lg { width: 28px; height: 28px; border-width: 3px; }
.as-spinner--inv { border-color: rgba(255,255,255,0.3); border-top-color: white; }

@keyframes as-spin { to { transform: rotate(360deg); } }

.as-loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(2px);
  display: grid;
  place-items: center;
  z-index: 30;
}

/* ===== Empty state ===== */
.as-empty {
  text-align: center;
  padding: 56px 20px;
  color: var(--as-text-tertiary);
}

.as-empty__icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border-radius: 12px;
  background: var(--as-bg-muted);
  display: grid;
  place-items: center;
  color: var(--as-text-tertiary);
}

.as-empty__icon svg { width: 22px; height: 22px; }

.as-empty__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--as-text);
  margin-bottom: 4px;
}

.as-empty__msg {
  font-size: 13px;
  color: var(--as-text-tertiary);
  max-width: 320px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ===== Stats / Metric cards ===== */
.as-metric {
  background: white;
  border: 1px solid var(--as-border);
  border-radius: var(--as-radius-lg);
  padding: 20px;
  box-shadow: var(--as-shadow-xs);
  transition: box-shadow 200ms ease;
}

.as-metric:hover { box-shadow: var(--as-shadow-sm); }

.as-metric__label {
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--as-text-tertiary);
}

.as-metric__value {
  font-size: 26px;
  font-weight: 700;
  color: var(--as-text);
  margin-top: 6px;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.as-metric__delta {
  font-size: 11.5px;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.as-metric__delta--up { color: var(--as-success); }
.as-metric__delta--down { color: var(--as-danger); }

/* ===== Tabs ===== */
.as-tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--as-border);
  padding: 0 4px;
}

.as-tab {
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--as-text-secondary);
  border: none;
  background: transparent;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 120ms ease;
}

.as-tab:hover { color: var(--as-text); }

.as-tab.is-active {
  color: var(--as-text);
  border-bottom-color: var(--as-text);
}

/* ===== Dropdown ===== */
.as-dropdown {
  position: relative;
  display: inline-block;
}

.as-dropdown__menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 200px;
  background: white;
  border: 1px solid var(--as-border);
  border-radius: var(--as-radius);
  box-shadow: var(--as-shadow-lg);
  padding: 4px;
  z-index: 60;
  animation: as-fade-in 120ms ease;
}

.as-dropdown__item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--as-radius-sm);
  font-size: 13px;
  color: var(--as-text);
  cursor: pointer;
  transition: background 80ms ease;
}

.as-dropdown__item:hover { background: var(--as-bg-muted); }
.as-dropdown__item--danger { color: var(--as-danger); }
.as-dropdown__item--danger:hover { background: var(--as-danger-bg); }

.as-dropdown__divider {
  height: 1px;
  background: var(--as-border-subtle);
  margin: 4px 0;
}

.as-dropdown__label {
  padding: 6px 10px 4px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--as-text-tertiary);
}

/* ===== Pagination ===== */
.as-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--as-border-subtle);
  font-size: 12.5px;
  color: var(--as-text-secondary);
}

.as-pagination__pages {
  display: flex;
  gap: 2px;
}

.as-page-btn {
  min-width: 28px;
  height: 28px;
  padding: 0 8px;
  border-radius: var(--as-radius-sm);
  border: 1px solid transparent;
  background: transparent;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--as-text-secondary);
  cursor: pointer;
  transition: all 120ms ease;
}

.as-page-btn:hover:not(:disabled) { background: var(--as-bg-muted); color: var(--as-text); }
.as-page-btn.is-active { background: var(--as-text); color: white; }
.as-page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== Switch ===== */
.as-switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
}

.as-switch input { opacity: 0; width: 0; height: 0; }

.as-switch__slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--as-border-strong);
  border-radius: 999px;
  transition: 180ms ease;
}

.as-switch__slider::before {
  content: '';
  position: absolute;
  height: 16px;
  width: 16px;
  left: 2px;
  top: 2px;
  background: white;
  border-radius: 50%;
  transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.as-switch input:checked + .as-switch__slider { background: var(--as-accent); }
.as-switch input:checked + .as-switch__slider::before { transform: translateX(16px); }

/* ===== Code block ===== */
.as-code {
  font-family: var(--as-font-mono);
  font-size: 12px;
  background: var(--as-bg-muted);
  padding: 2px 6px;
  border-radius: var(--as-radius-xs);
  color: var(--as-text);
}

.as-code-block {
  font-family: var(--as-font-mono);
  font-size: 12.5px;
  background: #0d1117;
  color: #c9d1d9;
  padding: 16px;
  border-radius: var(--as-radius);
  overflow-x: auto;
  line-height: 1.6;
}

.as-code-block .k { color: #ff7b72; }
.as-code-block .s { color: #a5d6ff; }
.as-code-block .c { color: #8b949e; }
.as-code-block .v { color: #79c0ff; }
.as-code-block .n { color: #d2a8ff; }

/* ===== Page header ===== */
.as-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.as-page-header__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--as-text);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.as-page-header__subtitle {
  font-size: 13.5px;
  color: var(--as-text-secondary);
  margin-top: 4px;
  line-height: 1.5;
  max-width: 640px;
}

.as-page-header__actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ===== Login page ===== */
.as-login {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: white;
}

.as-login__aside {
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 102, 255, 0.18), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(0, 180, 216, 0.18), transparent 40%),
    linear-gradient(180deg, #0a0a0f 0%, #14141d 100%);
  color: white;
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.as-login__aside::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.04) 1px, transparent 0);
  background-size: 24px 24px;
  pointer-events: none;
}

.as-login__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.as-login__content {
  position: relative;
  z-index: 1;
  margin-top: auto;
}

.as-login__content h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 14px;
}

.as-login__content p {
  font-size: 14.5px;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
  max-width: 380px;
}

.as-login__main {
  display: grid;
  place-items: center;
  padding: 40px;
}

.as-login__card {
  width: 100%;
  max-width: 360px;
}

.as-login__logo {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: linear-gradient(135deg, #0066ff 0%, #00b4d8 100%);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 24px;
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.as-login__title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.as-login__subtitle {
  font-size: 13.5px;
  color: var(--as-text-secondary);
  margin-bottom: 28px;
}

@media (max-width: 900px) {
  .as-login { grid-template-columns: 1fr; }
  .as-login__aside { display: none; }
}

/* ===== Misc utilities ===== */
.as-divider {
  height: 1px;
  background: var(--as-border);
  margin: 20px 0;
}

.as-skeleton {
  background: linear-gradient(90deg, var(--as-bg-muted) 25%, var(--as-bg-subtle) 50%, var(--as-bg-muted) 75%);
  background-size: 200% 100%;
  animation: as-shimmer 1400ms infinite;
  border-radius: var(--as-radius-sm);
}

@keyframes as-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.as-monospace { font-family: var(--as-font-mono); }
.as-text-truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--as-border-strong); border-radius: 999px; border: 2px solid white; }
::-webkit-scrollbar-thumb:hover { background: var(--as-text-tertiary); }

/* Mobile sidebar */
.as-mobile-menu-btn { display: none; }
@media (max-width: 768px) {
  .as-mobile-menu-btn { display: grid; }
  .as-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 80;
    width: 280px;
    transform: translateX(-100%);
    transition: transform 200ms ease;
  }
  .as-sidebar.is-open { transform: translateX(0); }
  .as-navbar__search { display: none; }
}